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Chapter IX - The Nature and Necessity of Scientific Revolutions

Chapter IX - The Nature and Necessity of Scientific Revolutions. from Thomas Kuhn THE STRUCTURE OF SCIENTIFIC REVOLUTIONS. What are the functions of scientific revolutions in the development of science?.

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Chapter IX - The Nature and Necessity of Scientific Revolutions

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  1. Chapter IX - The Nature and Necessity of Scientific Revolutions from Thomas Kuhn THE STRUCTURE OF SCIENTIFIC REVOLUTIONS

  2. What are the functions of scientific revolutions in the development of science? • A scientific revolution is a noncumulative developmental episode in which an older paradigm is replaced in whole or in part by an incompatible new one • A scientific revolution that results in paradigm change is analogous to a political revolution. • Political revolutions begin with a growing sense by members of the community that existing institutions are no longer meeting the problems posed by an environment that they have in part created— anomaly and crisis. • The dissatisfaction with existing institutions is limited to a segment of the political community.

  3. scientific revolutions continued … • Political revolutions aim to change political institutions in ways that those institutions themselves prohibit. • During a revolution's interim, society is not fully governed by institutions at all. • In increasing numbers, individuals become increasingly estranged from political life and behave more and more eccentrically within it. • As crisis deepens, individuals commit themselves to some concrete proposal for the reconstruction of society in a new institutional framework. • Competing camps and parties form. • As polarization occurs, political recourse fails. • Parties to a revolutionary conflict finally resort to the techniques of mass persuasion

  4. Why an old paradigm is rejected Like the choice between competing political institutions, that between competing paradigms proves to be a choice between fundamentally incompatible modes of community life. • A successful new paradigm/theory permits predictions that are different from those derived from its predecessor • That difference could not occur if the two were logically compatible. • In the process of being assimilated, the second must displace the first.

  5. What happens? • Consequently, the assimilation of either a new sort of phenomenon or a new scientific theory must demand the rejection of an older paradigm. • If this were not so, scientific development would be genuinely cumulative • Since no two paradigms leave all the same problems unsolved, paradigm debates always involve the question: Which problems is it more significant to have solved? • In the final analysis, this involves a question of values that lie outside of normal science altogether—it is this recourse to external criteria that most obviously makes paradigm debates revolutionary

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